Timmy Burch is a other south park charater, Timmy Burch, voiced by Trey Parker, is a mentally and physically handicapped boy who uses a motorized wheelchair. He is based on an elementary school acquaintance of South Park art director Adrien Beard. Timmy's exact condition has never been specified in the show, though South Park's official website describes it as "a strange combination of palsy and Tourette's". Timmy's spoken vocabulary is mostly limited to the enthusiastic shouting of his own name which could be conduction aphasia.